Revert "Temporarily Revert "Add basic loop fusion pass.""

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

1 files changed, 74 insertions, 0 deletions

diff --git a/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll b/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll
new file mode 100644
index 00000000000..9f11f1bd92c
--- /dev/null
+++ b/llvm/test/Transforms/GlobalOpt/unnamed-addr.ll
@@ -0,0 +1,74 @@
+; RUN: opt -globalopt -S < %s | FileCheck %s
+
+@a = internal global i32 0, align 4
+@b = internal global i32 0, align 4
+@c = internal global i32 0, align 4
+@d = internal constant [4 x i8] c"foo\00", align 1
+@e = linkonce_odr global i32 0
+
+; CHECK: @a = internal global i32 0, align 4
+; CHECK: @b = internal global i32 0, align 4
+; CHECK: @c = internal unnamed_addr global i32 0, align 4
+; CHECK: @d = internal unnamed_addr constant [4 x i8] c"foo\00", align 1
+; CHECK: @e = linkonce_odr local_unnamed_addr global i32 0
+
+; CHECK: define internal fastcc void @used_internal() unnamed_addr {
+define internal void @used_internal() {
+  ret void
+}
+
+define i32 @get_e() {
+       call void @used_internal()
+       %t = load i32, i32* @e
+       ret i32 %t
+}
+
+define void @set_e(i32 %x) {
+       store i32 %x, i32* @e
+       ret void
+}
+
+define i1 @bah(i64 %i) nounwind readonly optsize ssp {
+entry:
+  %arrayidx4 = getelementptr inbounds [4 x i8], [4 x i8]* @d, i64 0, i64 %i
+  %tmp5 = load i8, i8* %arrayidx4, align 1
+  %array0 = bitcast [4 x i8]* @d to i8*
+  %tmp6 = load i8, i8* %array0, align 1
+  %cmp = icmp eq i8 %tmp5, %tmp6
+  ret i1 %cmp
+}
+
+define void @baz(i32 %x) {
+entry:
+  store i32 %x, i32* @a, align 4
+  store i32 %x, i32* @b, align 4
+  store i32 %x, i32* @c, align 4
+  ret void
+}
+
+define i32 @foo(i32* %x) nounwind readnone optsize ssp {
+entry:
+  %cmp = icmp eq i32* %x, @a
+  %conv = zext i1 %cmp to i32
+  ret i32 %conv
+}
+
+define i32 @bar() {
+entry:
+  switch i64 ptrtoint (i32* @b to i64), label %sw.epilog [
+    i64 1, label %return
+    i64 0, label %return
+  ]
+
+sw.epilog:
+  ret i32 0
+
+return:
+  ret i32 1
+}
+
+define i32 @zed() {
+entry:
+  %tmp1 = load i32, i32* @c, align 4
+  ret i32 %tmp1
+}